Citation: Qi Zhi REN, Zhi Ang ZHU, Jin Wang HUANG, Liang Nian JI, Yong Ti CHEN. Conformation Analysis and Thermodynamics of Binding Behavior of DABCO to p/p type Dimeric Porphyrin Hosts[J]. Chinese Chemical Letters, ;2000, 11(11): 981-984. shu

Conformation Analysis and Thermodynamics of Binding Behavior of DABCO to p/p type Dimeric Porphyrin Hosts

1.
Nankai University, Department of Chemistry, Tianjin 300071;
2.
Zhongshan University, School of Chemistry and Chemical Engineering, Guangzhou 510275

Received Date: 7 April 2000

Fund Project: We acknowledge support from the National Natural Science Foundation (29871018) and Tianjin Science and Technology Committee Foundation (983602611) of China.

The binding conformations of bidentate ligand DABCO(1,4-diazobicyclo[2,2,2]octane) to a series of p/p type zinc porphyrin dimers covalently linked with flexible alkoxy chain-O(CH₂)_n O- (n=2~10) are described by ₁H NMR and UV-vis spectroscopy. DABCO can bind inside the cavities of porphyrin dimers and form a ternary sandwich complex as the alkoxy chain length is long enough. The thermodynamic parameters which control the binding behavior are investigated.
- Zinc porphyrin dimer,
- DABCO,
- thermodynamic parameters,
- binding conformation
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